package com.coder520.common;

import com.coder520.pojo.User;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Created by ASUS on 2017/7/4.
 */
public class Interceptor implements HandlerInterceptor{
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {
        String uri = request.getRequestURI();
        if(uri.indexOf("login")>0||uri.indexOf("checkUser")>0||uri.indexOf("regist")>0||uri.indexOf("attend/attend")>0){
            return true;
        }

        HttpSession session = request.getSession();
        User user = (User) session.getAttribute(Const.CURRENT_USER);

        if(user!=null){
            return true;
        }

        request.getRequestDispatcher("/user/login").forward(request,response);
        return false;
    }

    @Override
    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {

    }
}
